From kmuller@cern.ch Wed Jan 04 15:17:59 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!cern!kmuller From: kmuller@cern.ch (Katrin Müller) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan04.151759.9814@cern.ch> Date: Wed, 04 Jan 1995 15:17:59 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Katrin Müller | kmuller@cern.ch PGP Key fingerprint: D299 A666 688A B5B2 "Keep the channels open." From amuller@rwth-aachen.de Thu Jan 05 17:47:59 1995 Path: ashpoly!cascade!mxgate!coyoacan!rwth-aachen!amuller From: amuller@rwth-aachen.de (Anja Müller) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan05.174759.7680@rwth-aachen.de> Date: Thu, 05 Jan 1995 17:47:59 GMT References: <1995Jan04.151759.9814@cern.ch> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jan04.151759.9814@cern.ch>, kmuller@cern.ch (Katrin Müller) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Anja Müller Hayes Optima 288 @ 9600 Telebit bps "Measuring a record you own is listening, not piracy." From jsokolov@hanse.de Sat Jan 07 15:42:59 1995 Path: ashpoly!cascade!bigsur!hanse!jsokolov From: jsokolov@hanse.de (Jen Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan07.154259.3968@hanse.de> Date: Sat, 07 Jan 1995 15:42:59 GMT References: <1995Jan04.151759.9814@cern.ch> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jan04.151759.9814@cern.ch>, kmuller@cern.ch (Katrin Müller) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Jen Sokolov *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From fsato@berkeley.edu Sun Jan 08 16:16:59 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!fsato From: fsato@berkeley.edu (Freya Sato) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan08.161659.2727@berkeley.edu> Date: Sun, 08 Jan 1995 16:16:59 GMT References: <1995Jan04.151759.9814@cern.ch> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Jan04.151759.9814@cern.ch>, kmuller@cern.ch (Katrin Müller) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. If you are posting from AOL, please read RFC 1036 before posting again. -- Freya Sato Tape trading list upon request. SASE required for international mail. From fkim@illinois.edu Mon Jan 09 00:08:59 1995 Path: ashpoly!cascade!transat!ukc!fennimore!illinois!fkim From: fkim@illinois.edu (Freya Kim) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan09.000859.4739@illinois.edu> Date: Mon, 09 Jan 1995 00:08:59 GMT References: <1995Jan04.151759.9814@cern.ch> <1995Jan07.154259.3968@hanse.de> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jan07.154259.3968@hanse.de>, jsokolov@hanse.de (Jen Sokolov) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Freya Kim *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0